Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Swansea (Belmont) Threshold Days by Year

4 fixed thresholds counted per year at Swansea (Belmont) (ASN00092040): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Swansea (Belmont) Thresholds

  • Swansea (Belmont): days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1970 with 28.
  • Swansea (Belmont): days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 2016 with 11.
  • Swansea (Belmont): days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1969 with 4.
  • Swansea (Belmont): days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1978 with 1.
  • 4 fixed thresholds have at least one qualifying day at Swansea (Belmont).
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Swansea (Belmont) Days per year at Swansea (Belmont) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1970. 01020301968: 81969: 241970: 281971: 201972: 91973: 131974: 221975: 181976: 191977: 151978: 251979: 91980: 151981: 171982: 111983: 181998: 171999: 122000: 142001: 172004: 102013: 192014: 52015: 92016: 222017: 72018: 72019: 72020: 202021: 141968197119741977198019832000201320162019
Days per year at Swansea (Belmont) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1970.
Days with 10 mm (0.39 in) or more of precipitation per year at Swansea (Belmont)
YearDaysDecade average
1968816
19692416
19702817.8
19712017.8
1972917.8
19731317.8
19742217.8
19751817.8
19761917.8
19771517.8
19782517.8
1979917.8
19801515.3
19811715.3
19821115.3
19831815.3
19981714.5
19991214.5
20001413.7
20011713.7
20041013.7
20131910.9
2014510.9
2015910.9
20162210.9
2017710.9
2018710.9
2019710.9
20202017
20211417
First to last qualifying date each year at Swansea (Belmont) For each year, a bar from the first to the last day at Swansea (Belmont) meeting 10 mm (0.39 in). 1968: 5 March 1968 to 26 December 19681969: 15 January 1969 to 30 December 19691970: 3 January 1970 to 31 December 19701971: 1 January 1971 to 14 November 19711972: 10 January 1972 to 7 November 19721973: 6 February 1973 to 22 December 19731974: 17 January 1974 to 26 December 19741975: 10 January 1975 to 24 November 19751976: 8 February 1976 to 23 December 19761977: 17 January 1977 to 30 November 19771978: 29 January 1978 to 27 December 19781979: 3 March 1979 to 10 October 19791980: 24 February 1980 to 29 December 19801981: 3 March 1981 to 13 December 19811982: 7 March 1982 to 10 December 19821983: 2 January 1983 to 7 December 19831998: 26 January 1998 to 27 December 19981999: 29 January 1999 to 28 December 19992000: 4 January 2000 to 12 November 20002001: 23 March 2001 to 24 November 20012004: 18 January 2004 to 14 November 20042013: 1 February 2013 to 25 November 20132014: 16 February 2014 to 2 December 20142015: 14 January 2015 to 27 December 20152016: 12 January 2016 to 30 December 20162017: 20 January 2017 to 7 December 20172018: 30 January 2018 to 16 December 20182019: 7 February 2019 to 16 October 20192020: 11 February 2020 to 31 December 20202021: 4 January 2021 to 30 October 202119681972197619801998200420162020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Swansea (Belmont) meeting 10 mm (0.39 in).
First to last qualifying date each year at Swansea (Belmont)
YearFirst dateLast date
19681968-03-051968-12-26
19691969-01-151969-12-30
19701970-01-031970-12-31
19711971-01-011971-11-14
19721972-01-101972-11-07
19731973-02-061973-12-22
19741974-01-171974-12-26
19751975-01-101975-11-24
19761976-02-081976-12-23
19771977-01-171977-11-30
19781978-01-291978-12-27
19791979-03-031979-10-10
19801980-02-241980-12-29
19811981-03-031981-12-13
19821982-03-071982-12-10
19831983-01-021983-12-07
19981998-01-261998-12-27
19991999-01-291999-12-28
20002000-01-042000-11-12
20012001-03-232001-11-24
20042004-01-182004-11-14
20132013-02-012013-11-25
20142014-02-162014-12-02
20152015-01-142015-12-27
20162016-01-122016-12-30
20172017-01-202017-12-07
20182018-01-302018-12-16
20192019-02-072019-10-16
20202020-02-112020-12-31
20212021-01-042021-10-30

Every Fixed Threshold

Fixed thresholds at Swansea (Belmont)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3028197014
25 mm (0.98 in): Days with 25 mm or more rain291120164
50 mm (1.97 in): Days with 50 mm or more rain19419691
100 mm (3.94 in): Days with 100 mm or more rain4119781

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Swansea (Belmont) threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).